I was looking at another web-site this morning and found nearly this exact "TRICK" play. It is not an authoritative web-site but the ball is live and the catcher, as well as the rest of the defense, needs to be aware of what is going on too.
Coach Nick Dixon's Trick Plays
You will find a couple of other trick plays here but CHECK THIS OUT.... about 2/3 of the way down the web-page under
"FAKE WALK" - a distraction play
http://www.hit2win.com/trickplay.html
WHAT IF THE BATTER IS DEAF? This very play could happen without any intent to deceive.